Chapter title |
Comparative evaluation of the antimicrobial activity of 19 essential oils.
|
---|---|
Chapter number | 5011 |
Book title |
Advances in Microbiology, Infectious Diseases and Public Health
|
Published in |
Advances in experimental medicine and biology, November 2015
|
DOI | 10.1007/5584_2015_5011 |
Pubmed ID | |
Book ISBNs |
978-3-31-927934-3, 978-3-31-927935-0
|
Authors |
Chaftar, Naouel, Girardot, Marion, Labanowski, Jérôme, Ghrairi, Tawfik, Hani, Khaled, Frère, Jacques, Imbert, Christine, Naouel Chaftar, Marion Girardot, Jérôme Labanowski, Tawfik Ghrairi, Khaled Hani, Jacques Frère, Christine Imbert |
Abstract |
In our research on natural compounds efficient against human pathogen or opportunist microorganisms contracted by food or water, the antimicrobial activity of 19 essential oils (EOs) was investigated against 11 bacterial species (6 Gram positive, 5 Gram negative) and 7 fungal species (2 dermatophytes, 1 mould, 4 yeasts) using microdilution assays. Five essential oils were obtained from Tunisian plants (EOtun): Artemisia herba-alba Asso, Juniperus phoenicea L., Rosmarinus officinalis L., Ruta graveolens L. and Thymus vulgaris L., whereas others were commercial products (EOcom). Overall, T. vulgaris EOtun was the most efficient EO against both bacteria (Gram negative: MIC ≤ 0.34 mg/mL; Gram positive: MIC ≤ 0.70 mg/mL) and fungi (yeasts: MIC ≤ 0.55 mg/mL; mould: MIC = 0.30 mg/mL; dermatophytes: MIC ≤ 0.07 mg/mL). Two EOcom displayed both acceptable antibacterial and antifungal potency, although weaker than T. vulgaris EOtun activity: Origanum vulgare EOcom (bacteria: MIC ≤ 1.13 mg/mL, fungi: MIC ≤ 1.80 mg/mL), and Cymbopogon martinii var. motia EOcom (bacteria: MIC ≤ 1.00 mg/mL, fungi: MIC ≤ 0.80 mg/mL). Bacillus megaterium, Legionella pneumophila, Listeria monocytogenes and Trichophyton spp. were the most sensitive species to both EOcom and EOtun. This study demonstrated the noteworthy antimicrobial activity of two commercial EOs and points out the remarkable efficiency of T. vulgaris EOtun on all tested bacterial and fungal species, certainly associated with its high content in carvacrol (85 %). These three oils could thus represent promising candidates for applications in water and food protections. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 2 | 50% |
France | 1 | 25% |
Unknown | 1 | 25% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 3 | 75% |
Practitioners (doctors, other healthcare professionals) | 1 | 25% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Portugal | 1 | 2% |
Unknown | 58 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 12 | 20% |
Student > Bachelor | 8 | 14% |
Researcher | 7 | 12% |
Student > Ph. D. Student | 5 | 8% |
Student > Doctoral Student | 4 | 7% |
Other | 8 | 14% |
Unknown | 15 | 25% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 8 | 14% |
Biochemistry, Genetics and Molecular Biology | 5 | 8% |
Pharmacology, Toxicology and Pharmaceutical Science | 5 | 8% |
Chemistry | 4 | 7% |
Immunology and Microbiology | 3 | 5% |
Other | 14 | 24% |
Unknown | 20 | 34% |